Answer:
8
Step-by-step explanation:
3 - -5 = 8
filling space here dont mind this
Answer:
n=9
Step-by-step explanation:
because 3 times 9 =27 plus 17 =44
Not quite sure what you mean by brackets, but you can get the solution to this equation in a few steps:
<span>(-2x - 1)</span>² <span>= 0 ... square root both sides to eliminate the squared binomial
</span>√(-2x - 1)² = √0 ... simplify; the square is canceled out and the root of 0 brings you back to 0
-2x - 1 = 0 ... solve like a two-step equation
-2x = 1
x = -1/2 is your x-value.
Answer:
The average speed of the plain was 800 miles/h
Step-by-step explanation: